Half to fred l



(No Model.)

B. PORTER. HANGING LAMP.

No. 575,769. Patented Jan. 26, 1897.

//7 06/7 for UNITED STATES PATENT OFFICE.

BENJAMIN PORTER, OF ELLENDALE, NORTH DAKOTA, ASSIGNOR OF ONE HALF TOFRED L. WALKER, OF SAME PLACE.

HANGING LAMP.

SPECIFICATION forming part of Letters Patent No. 575,769, dated January26, 1897.

Application filed March 11, 1896. Serial No. 582,806. (No model.)

To all whom it may concern;

Be it known that I, BENJAMIN PORTER, a citizen of the United States,residing at Ellendale, Dickey county, North Dakota, have inventedcertain new and useful Improvements in Hanging Lamps, of which thefollowing specification contains a full, clear, and exact description,reference being had to the accompanying drawings, in which Figure 1 is aside elevation of my improved hanging lamp; and Fig. 2 is a similar viewof a modified form, the lamp bowl being omitted.

My invention relates to that class of hanging lamps which are adaptedtobe raised and lowered and commonly called drop-lights.

The object of the invention is to provide a simple and inexpensive lampof this character which may be detached from the hook or eye at theceiling and carried from one place to another, and again attached to theceiling hook or eye, and that without the use of a step-ladder. In theclass of lamps suspended by chains or flexible devices the lamp cannotbe detached from one ceiling-hook and carried to another without havingto mount a step-ladder,which is not only inconvenient but attended bymore or less danger. My lamp, however, has a rigicl,extensible, andcontractible hanger held in any adjusted position by means of aclutchspring, and it may be carried from one suspension-hook to another.

The invention will be first described, and then specifically pointed outin the claims.

A represents a lamp-bowl of any suitable construction and material, butI prefer-a metallic bowl.

13 represents the upper or stationary member of the hanger, andcomprises two parallel rods B B, either tubular or solid, an uppercr0sspiece B having a hook or eye b and a lower crosspiece B providedwith guideopenings 19 The lower or sliding member B of the hangercomprises two parallel guiderods B B which slide freely through theopenings b and are connected at their upper ends by a cross-piece Bwhich is provided with two end apertures b through which freely pass therods B B, so that said cross-piece may freely slide thereon.

The upper ends of the rods B pass freely through apertures 19 in thecross-piece B and have a short sliding movement therethrough, the upwardmovement being limited by pins 1)" or shoulders, which engage the underside of the said cross-piece, and the downward movement of the rods Bbeing limited by heads 17 on their upper ends. These heads 1) projectoutwardly and upwardly in opposite directions toward the inner sides ofthe rods 13, but do notcontact therewith, and O is a plate-springriveted or otherwise secured at its middle to the upper arched middleportion of the sliding cross-piece B and its ends curve upwardly andbite at their extremities upon the stationary rods B B, so as to yieldand allow the sliding section B of the hanger to be pulled down and yethold it in its adjusted position, the extremities of said spring beingnotched, as at c c, to prevent lateral disengagement.

lVhen the section B of the hanger is pushed up, however, the upper endsof its rods B will slide through the cross-piece B and thereleasing-heads b will engage the under side of the spring 0 and raiseits ends out of engagement with the rods B, so that the slidinghanger-section may be raised to any desired height. As soon as thesection B is released it will slide down and its heads Z) will becomeportions of these loops are rigidly connected by a handle D, spacedbelow the bottom of the lamp and having upwardly-projecting arms 61 d,secured to said loops.

E is a suspension-hook secured to the ceil- 9o ing and from which thelamp is removably suspended by the eye b By having these hooks indifferent parts of a room and in dif ferent rooms the lamps may beplaced whereever desired, as it is only necessary to grasp 5 -the handleD and raise the lamp as an entirety till the eye b is disengaged fromhook E and then carry the lamp Wherever desired,

the hanger remaining in its vertical position. If the lamp is too high,it will only be neces- 10o sary to pull down gently on the handle,whichwill overcome the friction of the spring 0 against the rods 13 and allowthe sliding hanger-section B to slide down, and a push on the handle Dwill cause the positive releasing of the spring C through the medium ofheads a and allow the hanger-section B to slide up.

The handle D is spaced away from the lamp, so as to prevent oil fromsoiling the hand when operating the hanger.

F is the usual bell or deflector suspended over the lamp-chimney fromthe crossbar B In Fig. 2 I have shown a modification of theretaining-spring C, and in place thereof a spring 0 is employed. Thisspring C is secured at its inner end to the upper side of the cross-barB and has an aperture 0 and a slot 0 through which pass a rod and a rod13, respectively, and from the outer end of the spring hangs anoperating strand or chain C The spring 0 projects at an angle and itsaperture 0 engages with its outer wall, as at 0 the outer side of therod B so as to frictionally hold it against downward movement due to theweight of the lamp, but not with suiiicient force to prevent the lampfrom being pulled down to any desired position. In order to raise thelamp, the strand or chain C must be pulled upon to depress the spring Cand throw its edge 0 out of contact with rod B and then the lamp may bepushed up to any desired height, when the spring C will be released andagain clutch or grip the rod B as before, and hold the lamp in itsadjusted position. In this modified construction the upper ends of rodsB are immovably secured to cross-piece B The slot 0 is simply to allowthe spring to straddle the bar 13.

Having thus described my invention, what I claim is 1. The combinationwith the stationary hanger-section having parallel rods upper and lowercross-pieces of the sliding lamp-supporting hanger-section also havingparallel connected rods and a plate-sprin g secured to onehanger-section projecting at an upward incline toward a rod of the othersection and engaging said rod with sufficient force to hold the lamp atany desired adjustment and yet yield to a downward pull on the lamp, andmeans for disengaging the spring from the said rod when the lamp is tobe raised or pushed up, substantially as set forth.

2. The combination with the upper or stationary hanger-section havingparallel connected rods, of the lower or lamp-supporting section havingparallel rods in sliding engagement with said upper section; said rodshaving a limited sliding movement of their own independent of theirmovement on the said upper section, and a clutch or grip on the upperend of the lower section, engaging the upper section and in the path ofthe upper end of said sliding rods, to be released thereby when thelower section is pushed up and given connection with said upper section,a crosspiece connecting the upper ends of said sliding rods and in whichsaid upper ends have a limited sliding movement, a spring secured to theupper side of said cross-piece and frictionally engaging with itsopposite ends the stationary parallel rods; the upward movement of thesliding rods causing their upper ends to bear against the lower side ofsaid spring and press the ends of the spring out of engagement with saidstationary rods, substantially as set forth.

at. The combination with the upper or stationary hanger section havingupper and lower connecting cross-pieces, of the lower or lamp-supportinghanger-section having parallel rods in sliding connection with saidupper section and connected at their upper ends by a cross-piece slidingon the stationary rods and through which cross-piece the upper ends ofsaid sliding rods have a limited sliding movement, heads on the upperends of the sliding rods and projecting toward the stationary rods, aspring secured at its middle to the middle of the upper side of saidsliding cross-piece with its ends projecting outwardly and upwardly intoengagement with the stationary rods just above said heads, substantiallyas and for the purposes set forth.

5. The combination with the upper or stationary hanger-section and meansfor suspending it, of the lower hanger-section having parallel rods inadjustable sliding connection with said upper section, lamp-receivingloops or yokes at the lower ends of the sliding rods and a transversehandle-bar, rigidly connectin g the lower ends of said loopssubstantially as set forth.

6. A hanging lamp consisting in the upper or stationary hanger-sectionhaving means for suspending it from a ceiling and provided withdepending parallel rods connected at their lower ends by an aperturedcross-piece, the lower or sliding hanger-section having parallel rodssliding through said apertured cross-piece and provided at their upperends with a cross-piece sliding on said stationary rods and in whichcross-piece the upper ends of said sliding rods have a limited slidingmovement, heads on the upper extremities of the sliding rods, a springsecured to the sliding cross-piece above said heads to be raised therebyand engaging with its opposite ends the said stationary rods, alamp-bowl secured to the lower ends of the sliding rods, and ahandle-bar beneath the bottom of the lamp and spaced therefrom,substantially as set forth.

'7. The combination with the upper hangersection having dependingparallel rods, of the lower, lamp-supporting hanger-section havhold thelamp-supporting section at any deing vertical parallel rods and across-piece sired height, substantially as set forth. connecting theirupper ends and sliding on the first-named rods, and a spring secured atBENJAMIN PORTER. 5 its middle to the said sliding cross-piece and\Vitnesses:

in frictional engagement at its opposite free D. W. COLEMAN,

ends With said depending stationary rods to C. W. PALMER.

